Home / 10,320.01-15,478.80-6,105.78

Finding the Fourth Proportional to 10,320.01, 15,478.80 and 6,105.78

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Solution

The fourth proportional to 10,320.01, 15,478.80 and 6,105.78 is: 9,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.01 : 15,478.80 = 6,105.78 : x
  2. Step 2: Convert to fraction form
    10,320.01/15,478.80 = 6,105.78/x
  3. Step 3: Cross multiply
    10,320.01x = 15,478.80 × 6,105.78
  4. Step 4: Simplify right side
    10,320.01x = 94,510,124.57
  5. Step 5: Solve for x
    x = 94,510,124.57/10,320.01
  6. Step 6: Final answer
    x = 9,157.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.